Structural and magnetic properties of Dy2Co17-xMnx compounds

• 来源期刊: 中国物理（英文版）
• 学科: 物理学
• 关键词: 2:17-type compounds crystal structure magnetism
• 年，卷（期）: 2002,（2）
• 页码范围: 174-177
• 页数: 4页
• 分类号: O4
• 语种: 英文

摘要

Using x-ray diffraction and magnetic measurements, we have studied the structural and magnetic properties ofDy2Co17-xMnx (x＝0～5) compounds with a rhombohedral Th2Zn17-type structure. With an increasing Mn concen-tration x, the unit-cell volume V was found to increase linearly. The Curie temperature TC decreases linearly, andthe saturation magnetization Ms at 5K first increases slightly for x ＜1, then decreases rapidly for x ＞1 with a furtherincrease of Mn concentration x. In compounds for x＝1～3, a spin reorientation was found. A magnetic diagram of thecompounds is given.